Serum Lactate and Mean Platelet Volume as Predicators for Acute Exacerbation in Patients With Ulcerative Colitis

Biomarkers like erythrocyte sedimentation rate (ESR) and C reactive protein (CRP) are used for monitoring the disease activity but present a low specificity and sensitivity in UC . There are fecal biomarkers with better performance for detecting disease activity in UC like fecal calprotectin and lactoferrin, however, are very expensive Platelets present granules with Interleukin 8 (IL-8) which is a potent neutrophil chemoattractant and its cytoplasm contains P-selectin that induces overproduction of superoxide and the formation of neutrophil-platelet aggregates, which are elevated in patients with UC. The inhibition of this aggregates suppress the appearance of colon inflammation

The mean platelet volume (MPV) is correlated to the UC activity as also the increase of white blood count (WBC) mainly neutrophils. The interaction of neutrophil-platelet is a possible explanation of the high prevalence of thrombosis in UC due to the formation of Neutrophil Extracellular Traps (NETs) through Toll-like receptor 4 (TLR-4)